Panduit FDC9N-24-10ULH FlexCore 24-Fiber OS2 Cassette

The Panduit FDC9N-24-10ULH is a front-access fiber optic cassette delivering 24 singlemode OS2 fibers in a pre-terminated, factory-tested assembly. It bridges LC duplex patch panels to MPO-12 trunk infrastructure, converting two 12-fiber MPO backbone connections into twelve individually accessible LC duplex ports. Built for FlexCore ODF and OSF enclosures, this cassette brings field-reversible polarity and standard insertion loss to high-density data center and campus backbone migrations. Left-hand orientation places connectors on the designated side for rack layout planning in mixed-polarity deployments.

Key Features

• 24 OS2 singlemode fibers: LC duplex front interface to dual MPO-12 male rear connections for 40G/100G backbone breakout
• Universal polarity design: field-reversible without re-termination to match Type A, B, or C trunk polarity schemes
• Standard insertion loss: factory-tested performance meets TIA-604-5 (FOCIS-5) and TIA-604-10 (FOCIS-10) for predictable link budgets
• Left-hand orientation: connector placement supports structured rack layouts in alternating or mirrored panel configurations
• FlexCore ODF/OSF compatible: drop-in module for Panduit's front-access fiber enclosures (1U, 2U, 4U chassis)
• Polycarbonate housing: 11.7mm height × 292.8mm width fits standard FlexCore slots with snap-lock retention
• ISO/IEC 11801 and ANSI/TIA-568-C.3 compliant: meets structured cabling standards for commercial building backbone and data center permanent links
• IEEE 802.3 and ANSI T11.2 ready: supports 10G/40G/100G Ethernet and Fiber Channel protocols over OS2 infrastructure

High-density fiber migrations demand pre-terminated assemblies that eliminate field splicing while maintaining polarity control across multi-tier architectures. The FDC9N-24-10ULH cassette solves the trunk-to-patch transition in FlexCore ODF deployments: MPO-12 backbone cables land on the rear of the enclosure, cassettes break out to LC duplex on the front, and technicians patch to active equipment without opening the chassis or handling exposed fiber. Universal polarity reversal handles the common scenario where backbone trunk polarity (determined by building riser installation months earlier) doesn't match the switch-side expectation—flip the cassette's internal key and the entire module reconfigures from Type A to Type B without re-pulling cable. Standard insertion loss (typically ≤0.75 dB per mated pair) preserves link budget on 10km+ campus backbones and 40G QSFP+ breakout applications where every 0.5 dB matters.

Data center and enterprise IT teams use this cassette in three common scenarios: 40G-to-10G breakout (one 40GBASE-SR4 MPO link fans out to four 10GBASE-SR LC duplex connections), structured backbone consolidation (aggregating dozens of LC duplex building riser terminations into two high-fiber-count MPO trunks for core switch uplinks), and staged migration (installing MPO backbone infrastructure today for future 100G while breaking out to 10G LC today). Left-hand orientation matters when racks alternate cassette sides to prevent cable congestion—pair this with right-hand cassettes (FDC9N-24-10URH) for clean horizontal cable management in adjacent panels. The 292.8mm width matches FlexCore ODF chassis internal dimensions; ten-pack carton quantity reflects typical full-chassis deployments (a 2U FlexCore ODF holds up to 8 cassettes = 192 LC duplex ports in 3.5 inches of rack space).

OS2 singlemode fiber (9-micron core) is the only fiber type rated for 10km+ transmission at 10G, 40G, and 100G data rates. This cassette uses OS2-grade fiber throughout, tested to ISO/IEC 11801 and TIA-568-C.3 attenuation limits (≤0.4 dB/km at 1310nm, ≤0.3 dB/km at 1550nm). That makes it suitable for campus backbone links between buildings, data center row-to-core distribution, and any permanent link where you cannot predict future bandwidth needs. MPO-12 male pinning follows TIA-604-5 FOCIS-5 physical contact specs; LC duplex connectors follow TIA-604-10 FOCIS-10. Both connector types are factory-polished and tested, eliminating the 15–30% field-termination failure rate common in on-site fusion splicing. RoHS 2002/95/EC compliance confirms lead-free construction for EU and California installations; UPC 61305683269 ties to Panduit's factory test records for insertion loss and return loss per serialized cassette.